Sole rounding and channeling machine.



PATENTED NOV. 26, 1907.

A. M. ENGLISH.

SOLE ROUNDING AND GHANNELING MACHINE.

APPLICATION FILED APB.10,1905.

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PATENTED NOV. 26,1907.

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APPLICATION IILED AR.10,1905.

SOLE ROUNDING AND CHANNELING MACHINE.

PATBNTED NOV. 26, 1907.

APPLICATION FILED APR. 10, 1905.v

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PATENTED NOV. 26, 1907.

A. M. ENGLISH.

SOLE ROUNDING AND CHANNELING MACHINE.

APPLIOATION FILED APR.10.1905.

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Z/Jlnessels .PATENTED NOV. 26, 1907.

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SOLE ROUNDING AND CHANNELING MACHINE.

APPLIOATION FILED APR.10.1905.

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SOLE ROUNDING AND GHANNELING MACHINE. APPLIOATION FILED APR.10,1905.

Invenar e/Jna Zd o Entvyzisl y fwd I Zl/Znemses vm-ff UNITED sTnTEs PATENT einen ANALDO M. ENGLISH, OF BOSTON, MASSACHUSETTS, .ASSIGNOR TO MANUFACTURERS MACHINE COMPANY, OF MONICLAIR, NEW JERSEY, A CORPORATION OE NEW JERSEY.

SOL-E ROUNDING AND CHANNELING MACHINE.

Specification of Letters Patent.

Patented 1 ov. 26, 1'907.

i To all 'who/m it may concern:

Be it known that I, ANALDo M. ENGLISH,

a citizen ofthe United States, residing at Boston, in the county of Sufolk, Common- .wealth of Massachusetts, have invented an Improvement in Sole Rounding andChanneling Machines, .of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to machines for operating .upon the solesoi' boots and shoes and .particularly to such as are intended to trim and to channel the sole of a shoe whileon the last, and known in the trade as rough .rounders In trimming the soles of boots and shoes itis often desirable to form thereon what is known as a Scotch edge, that is to say, a widened extension of the -sole around the ball of the shoe. Sometimes, when this extension is of greater width at the outside of the ball, than at.- the inner side thereof, it is known as a Baltimore edge.

Machines for this purpose have long been known in the art and are of several dilferent types,'but so far as known to me all comprise in general a work guide, and a chopping or trimming knife, movable one relatively to the other, to vary the width of the sole extension during the trimming operation. In the older types of these machines the vv ork guide operated usually in the bottom of the crease and against the inseam of the .shoe

throughout its entire travel around the shoe. A machine of this type is illustrated in U. S. patent to Turner No. 232,382, dated September 21, 1880, and in said Turner patent, the guide and the trimming or-chopping knife, and the channeling knife are all made relatively adjustable for varying the Width of extension lett by the trimming knife and also for varying the position of the channel 'from the edge of the sole. In the machine illustrated in this patent also, the channel kni'l'e may be left freely adjustable by and -with the trimming or choppin T knife, whereby the distance of the channel -from the sole edge might remain constant, notwithstanding the varyii'ig positions of the sole edge from the inseam.

It is desirable to guide `from the inseam, along the sides of the shank of the shoe because the trimming, in the shank, should be as close as possible tothe inseam, and it is desirable ior'a number oi reasons, to guide the shoe as well. While theoretically, the inseam usually follows the contour of the last, at the bottom thereof, and should therefore furnish an accurate guiding line, accord'- ing to which' the sole might he trimmed, it is a fact, nevertheless, that the inseam frequently varies more or less owing for example to inaccurate channeling or sewing o r to v-ariations in thickness-or texture' of the u per leather along the line of the inseam. In ater machines devised for this same work, such for instance, as illustrated in patent to White, No. 249,279, dated November 8, 1881, the guide was shown so constructed as to act not in and along the inseam, but along the last edge producedby the use of this guide would show the irregularities if any existing in the inseam, but would, nevertheless, follow a line closely parallelingwhat the inseam ought to be and what perhaps in the majority of cases such inseam would be. Such a last guide, however, was objectionable, not only for the reason above stated, namely, that in the shank it was desirable to trim more closely to the inseam than a last guide would conveniently permit, but also because the heavy pressure with which these shoes must be held against the guide during a rough rounding and channeling operation, might tend to bruise, mar, or, in the presence of dirt, soil the upper, along which the last guide must slide in passing around the slice. These ohjections led to theuse ol an inseam guide along the shank only of the shoe where the sole edge is more or less concealed by the overhanging body of the shoe, and consequently, where the necessity of symmetrical outline is not so great; and, when the fore part is reached, transferring the guide from the inseam to the edge of the last, or the upper thereon. This rec uired two independent guides, one working along the shank portion of the shoe, and the other around the` fore' part. Such a machine is illustrated in the patent to French & Meyer, No. 599,602, Feb. 22, 1898, in which the locations of .the cuts, both of the trimming and channeling knives along the shank portion are determined by'keeping ther inseam of the shoe pressed up against a stationary guide, and

also from the inseam about-the fore part ofk close tothe inseam, so that the trimmed' 5 thereafter assumes control thereof, guiding wholly from the last, so that any'irregularities that mayexist'in the inseam, are not communicated to the sole outline. Guiding the shoe, from the last, however, is not free from objections for the reason that the pressing of the shoe against the guide with the` firm pressure required in these machines, frequently mars the leather; andin the manufacturaof russet or tan shoes, there is the added liability of lsoiling the leather from particles of dirt or grease falling between the guide and the upper, and rendering the shoe unfit for the market, unless, perhaps, it may have been cleaned at considerable expense.`

My inventionaims to useva single guide throughout the contour of the shoe thereby to avoid shifting from one to another of two independent guides.

My invention also aims .to employ the guide along and from the inseam only, wlth all the advantages possessed by such a guide, but, at the same time, furnish means, preferably of feeler or other light and non-guidingnature that will not mar or soil the upper. whereby this inseam guide may be so adjusted from time to time as to compensate fo'r and offset any irregularities in position of the inseam, in order that the inseam may be relied upon as a sufficiently accurate guide for producing a trimmed sole of symmetrical outline corresponding to that of the last, even though not produced thereby.

A further aim is to combine with such an inseam guide means for producing the Scotch or Baltimore" extension edges where desired.

The nature of my invention and other objects and advantages thereof will be clearly apparent from a description of one embodiment, which has been selected for illustration herein, and is shown in the accompanying drawings, and its scope will be pointed out in the appended claims.

In the drawings,-Figure 1 is a lefthand side elevation of the head of a machine, embodying my invention; Fig. 2 is a right hand elevation thereof; Fig, 3 is a plan view looking down upon the top of a machine; Fig. 4 is a front elevation; Fig. 5 is a horizontal sectional view through the knife carrier and adjacent parts on the line 5 5, Fig. 2; Fig. 6 is a horizontal sectional view below the pattern on the line (5f-6, Fig. 7; Fig. 7 is a side elevation dfi the parts shown in Fig. 6; Fig. 8 is a horizontal section onV the line 8 8', Fig. 7 Fig. 9 is a vertical section on the line 9-9, Fig. 6 looking to the right; Fig. 1() is a 'section on the line 10-10, Fig. 1; Fig. 11 is a ,detailed view of the pattern and channel knife operating lever; Fig. 11a is a detached detail of the starting dog and pattern pins. Fig. 12 is a vertical longitudinal section of the inseam guide and feeler; Fig. 13 is a section on the line 13-13,Fig. 2; Fig. 13" is a detail view of the wedge guide blocks. Fig. 14 is a plan view of the knife carrier adjusting wedge and operating parts connected therewith; Fig. 15 is a side elevation of the y arts shown in Fig. 14 showing a part of the nife carrier adjacent thereto Fig. 16 is a plan view partly in section of the guide wedge adjusting member and its operating cam; Fig. 17 is a detail view partly in seetion of the hub of the member for adjusting the guide wedge; Fig. 18 is a plan view partly in outline of treadle mechanism for the machine; Fig. 19 is a side elevationv partly in section on the line 19-19 Fig. 18.

In the machine which has been herein selected for the illustration of my invention and is shown in the accompanying drawings, the edge of the sole is inserted between an inseam guide 1 and a spring-actuated presser or clam 2, as indicated by dotted lines, Fig. 1 with t e welt resting againstthe inner face of the guide and the extremity of the guide bearing firmly at the bottom of the crease against the inseam. The sole thus held stands in the path of a trimming or chopping knife 3, and against a channeling knife 4, the latter formed upon the forward extremity of a laterally stationary but vertically adjustable block 5 and engaging the treadl surface of the sole at the proper distancefrom the edge thereof to form the channel, as the sole is fed past it.

In trimming the sole around the fore part of a shoe it is desirable that the outline thereof shall be symmetrical vwith respect to the general outline of the shoe 'as viewed from above. The inseam, however, which here forms 'the guiding basis, is fo'uiid to run somewhat irregularly with respect to such outline and it is necessary therefore to previde means whereby the inseam guide may be automatically adjusted to provide for lerrors in the position of the inseam at any point, arising from this source. To this end 1 have provided, adjacent the inseam guide 1, a guide adjusting member comprising a feeler 6 pivotally mounted'upon a rocking lever 7 and held by a spring 6b in contact with the outer face of the guide 1; being formed upon either side of tie feeler 6 to embrace the guide 1 `and maintain the fceler in alincment"therewith. The operative extremity of the fecler is provided with a testing roll 9 which is adapted to rest against the upper of the' shoe operated upon just above the inseam and follow the con-` tour.of the last .within the shoe, whereby through suitable ,Ineclzanisnn laereinaler described, the guide 1 is adjusted with respect. to the trimming knife and is caused to so guideV thb shoe from the inseam that lugs 8 A. the sole will be trimmed along a line symmetrical with the general outline of the shoe. The feeler 6 is here shown in the 'position relatively tothe guide 1 which it will assume when the guide is operative along the a Baltimore edge, on the sole outside of the 'ball portion of the shoe, thetrimming knife 3 is raised or moved transversely of lits trimming stroke, whereby it is .caused to trim the sole at a greater distance froml the extremity ofthe Aguide member 1.' The movements of the trimming knife for this purposel are` controlled bysuitable mechanism hereinafter described,- whereby the outline of the extension sole may be determined automatically. I

i The feed of the work is'eected by the combined clamping andfeeding action of the vinseam guide 1, the coperatingfour-motion presser-2 and the trimming knife 3, made laterally movable for the purpose. These three members grip the work and carry it the length of a feeding stroke, whereupon the presserf'2 is vrelieved of clamping ressure and, togetherwith the vinseam gui e 1, returns to lits initial position', where both again seize the work and hold it for another trimming stroke of the trimming knife. At theend of each feed and in order to prevent retrograde "movementof thejwork by the return of the uide and presser, the .trimming knife 3 is loc ed, so as to hold the work untilthe guide and presser have completed their return lmovements, whereupon it is withdrawn from the work, isgunlocked, and returned alone to its initial position, preparatory to another trimming stroke. The

laterally stationary channeling knife buried` inthe Work, aids the trimming knife in retaining the work against retrograde movement during the return stroke of the guide and presser. The channeling knife, furthermore, has a Amovement toward land from the .trimming knife, .whereby the distance vof the channelfromthe edge of the sole may be varied where necessary. For example, it is usual to locate-the channel further within the-edge of the sole'along the shank portion, than .around the fore part;l lfor this purpose my invention contemplates means whereby the channel knife is moved by the operator to -take' a position at a proper distance vfrom the trii'fiimngknife along thefore part of the sole, v`and'ffto -returnfto its other position' around 'the shank 'of the sole.`

1n order toprovide for vertical adjustment of the inseam guide necessary to offset irregularities in the inseam, said guide is mounted upon a supporting arm 10 pivoted at its rear end, at 11, to the sleeve 54, on the stationary stud 55. To detect these irregularities in the inseam and to cause the necessary adjustment of the inseam' guide, the feeler 6 hereinbefore referred to, is pivoted at 6, to a stud 6, screwedinto the end of and thereby 'made adjustable in a lever 7, pivfxed arm, 14, xedly mounted at its rear end upon the upper end of said vertical stud 55. lThis feeler yis held lightly in contact with the front face of the inseam guide 1, by a jack knife spring 6b (see Fig. 12), and carries at its lower end the roller 9, which travels along and upon the last, or the upper thereon, immediately above the inseam.

The inseam guide 1 is adjusted vertically, as indicated by the feeler 6, by means of a movable wedge, 13, the position of which is determined by said feeler.

guide arm 10 and the fixed arm 14 that carries the feeler lever.

To guide thewedge properly betweenthe arms 10 and 14, said wedge (see Fig. 13) slides in a two-part guide block, consisting of the parts 13a and 13b, having respectively the arms 13X and guideway'sl 13-v mounted' to slide one ,in the other to permit said parts to the adjustments of the wedge13, said .parts also bemg adjustable both together in a hollow boss 14a on said arm 14. The normal elevadetermined by anfadjusting screw 13C, that said twopart guide block. The )ositionof wedge (See Fig. 4) and are mounted upon the Fig. 1 to" -the frame 19, of the machine; This arm 17 and its grippers are maintained normally in position to the left, (Fig.A 4) by. means of4 a spring 17 u. The hub 17b of this voscillating arm 17 has a lug'27 (Fig. 17) projecting from one side thereof, said lug carry'- ing a headed stud 27, through the headed end ofv which passes the lower ond of the rod 26l depending fromI the Arear-.portion of the feeler carrying lever 7. To/the rod 26, belowthe headed en dof the stud 27a, is secured a stop 26a, and between the headed 'rod, is disposed a spring 28, the construction and arrangement being such that any movement of the saidffeeler will be vcommunicated j to and'oscillatethe arin 17 and its connected grip ers 15, causing the latter to shift in one or t eothervdirection. The forward gripper l 15(see Figl) has secured theretoa strap oted at 7 1, upon theside of the horizontal Y j This wedge isV interposed between the movable inseam.

separate and come together to accommodate,

tion of the arm 1 0 and its inseam guide, may be acts upon said arm through the medium of,

' this wedge is .shifted by-means o; a pair ofv grippers 15, which embrace the shank of thevertical oscillating arm 17, pivoted at '18,.

end of the stud V27n and a collar 28a on said tion to cause the grippers 15 to approach ydepending actuating spring arm 22.

20, which straddles the oppositegripper and has pivoted therein a block 21, fulcrumed on a lug 23, on said other gripper, and having a rfhis spring arm 22 hangs in front of a cam 24, fast on the main shaft A, 'which every rotation swings said spring arm 22 1n a direceach other and grip the wedge13. The cam 24 (see Figs. 1 and 16) is provided also with side Cain faces 24a, which by passing `at every rotation between a pair of roller studs 25 on the oscillating arm 17, center said arm,

i. e., bring it invariably to a given position,

and thereby cause it, by engagement of its grippers with the wedge 13 to move said wedge to shift in one or the other direction and correspondingly adjust the inseam guide according to the position indicated by the feeler that controls the grippers.

In the operation of the machine, so long as the inseam is at the proper distance inward from the edge of the last the feeler will travel idly along the upper covered last and effect no adjustment whatever of the wedge and the inseam guide. /Vlien, however, a rise or a dip in the inseam is met, the feeler will approach or recede from the active edge of the inseam guide and will thereby swing its grippers to cause the wedge4 to be engaged at a new point and when centered, by the cam 24, shift said wedge to the left or to the right, thereby to 'adjust the inseam guide either ydownward or upward by a distance necessary to oii'set the rise or dip in the inseam and leave the line of cut of the trimming knife as if no irregularity in the inseam had been encountered.

The rocking arm 17 is limited in its rocking movements and prevented from being moved out of range of the cam 24 by the end27b of the stud 27 a (Fig. 17) projecting into a socket 27d in the frame 19 of the machine, which stud in the normal position of the arm is held centrally of said socket. The range of movement ofthe roc-king arm 17 is sufficient to provide forvall-usual adjustments required for the inseam guide, butin practice it is found that extreme movement of tlie-armis seldom required.

To determine the range of movement ofl thewedge or distance member 13 the latter is provided with shouldersr-13l Fig. 3 'at either end of the ilatshank of said member traversed by the gripping members 15.v When the gripping members in their rocking movement strike againsteither of the shoulders 13a, lfurther movement of the arm 17 is stopped, although movement -of the rod 2.6 may be continued against the pressure of the relief spring l2S, the friction between the wedge 13 and the arms 10 and 14 being sufficient to resist this spring pressure. When v the wedge member has been movedtola position where ome of its shoulders contacts with of the wedge 13 will be taken up by the relief spring 28 vthout affecting the position of the inseam guide 1.

When the operator presses the inseam of a shoe up against the inseam guide, the shoe upper on the last at the same time contacts with and moves upwardly the feeler 6, thereby through the lever 7 and rod 26 rocking the gripper carrying arm 17 to the right against the spring 17 a. The cam 24 will then in its next rotation swing the spring arm 22 causing the grippers 15 to grip .the wedge or distance member 13, Ifurther rotation of the cam serving to carry the wider portion thereof between the roller studs 25, and in ca se the studs are not alined with the pat-hof said cam centering, the arm 17' and shifting the wedge 13 to the right or left according to the position in which said cam finds said -arm 17, thus raising or lowering the guide arm 1() and its inseam guide 1, to position the shoe with respect to the trimming knife.

It is to be understood that when the roller the feeler mechanism are so timed that the j compensating movement of the inseam guide due to any irregularity in the inseam, will occur just prior to a trimming stroke of the knife. j

By reason of the spring connection between the depend-ing thrust rod 26 and the gripper arm 17, the feeler 6 is at all times freely vertically movable so that it may not bear unduly, press upon and mar the upper' and so that it may respond readily to any inequality in the upper without disturbance of. the shoe in the hands of the operator other than theproper adjustment. of the inseam guide against which alone the shoe is pressed and by which it alone is guided. Thus, at no time Acan said feeler serve either Yalone or in conjunction with the inseam guide as a guide for the shoe; it has no sufficient supporter resistance for a guide; it is merely a feeler which indicateswhen and to what extent the y real guide 1 shall be adjusted.

The trimming or chopping knife 3 (see Fig. 5) is attached by screws 3LL to the forward end of a knife slide 29, which'latter is pivot'ed at its rear'end at 29b to a block 29a` mounted to slide ina guide-way 32 of the knife carrier 30, the latter being pivotally mounted at the bolt 46, secured to the lug 42 of the km e rear ofthe machine upon thesame pivot 11 VIVu on-whi'ch the inseam guide arm 1() swings.

Ilfie knife slide 29 is of lesswidth than the 5 guide-way 32. to permit the knife carrier 30 after having swung to one side to give feeding movement to the knife, to return with the inseam guide carrying arm to their nor'- mal positions while permitting said knife to 'remain locked as hereinbefore referred to, to hold the work stationary, during the return movement oflthe inseam guide and presser for a new grip preparatory to a new feed pressure.

' knife is effected by a vertical lever 33 (Fig. 2)

fulcrumed at v33b engaging a downward exy tension 34 of the knife slide 29 through the intervention of a sliding block 35, which sion 34. The guide-'way 32y of the knife car- .;,rie 30 extends entirely through said carrier from top` to bottom thereof and the support y for the knife slide 29 is afforded'by a plate 37 25 secured to the under side of the ca'rrier 30, lsaid -plate having an opening 33 through which the extension 34 of the knife slide projects, the opening being-of sufficient length. .to permit of the trimming stroke of theknlfe. The trimming knife 3, in its forward and cutting movement 'chops upon or against a suitable block 61,(see Fig. 12), which is slidably-` mounted upon the inner face of the inseam guide 1 and is connected byfa finger i 35 62 Fig. l with the forward extremityof the knifecarrier 30, whereby said block is maintained in the same relative position with respect to the trimming knife, regardless of the Ivertical adjustment of the inseam guide with Arespect to said knife; so also, when the knife isy adjusted vertically, it carries with it the said chopping block, so that the two are always in proper register one with the other. The finger may be secured in any convenient manner (not shown) upon the knife carrier 30. The operating lever 33 for the knife Islide is lactuated from path 39, .in a'cam wheel 39 on the main shaft of the machine, through the friction roll 33a. j

.The presser 2 (Fig. 2) which engages the tread surface'of the shoe sole is carried byal swinging arm 40, pivoted at its upper extremity at 41 on a lug 42 which extends upwardly fromjthe knife carrier 39,"saids'winging arm being prolonged to form an operating handle 43, whereby the presser may be pressedrearwardly by the operator toadmit the solebetween itself and the inseamguide 1.

The clampingmovement ofthe presser 2 is 6o effected by f means of a thrust'bar 44, (Figs. 2

and 3) which is slifdably' mounted in theknife carrierf'lug 42 that carries the clamping arm 40. This thrust bar and consequently the arm audits clamp are normally pressed '65 forwardly by thef spring45 encircling the lthe clamping presser 2.

The forward or trimming stroke of the` vwhich is actuated by the peripheral cani 39 slides in a transverse way 36 of said extenv"53 upon a stud 59 depending from a lug 60 on carrier` This bolt 46 passes through a lug 47 on the thrust bar 44, between which lug and a he'ad 48 on the said bolt a spring 45 operates to afford spring clamping action to The bolt 46 may be secured against accidental turning by means of a pinch screw 49 in the lug 49u. In order to release the sole of the shoe from the clamping action of the presser 2 periodically at the end of each feeding movement, the thrust bar 44 has its rear extremity jointed to a cam' lever 50 pivoted at 51 to the frame of the machine and provided with a friction roll-52 to draw the thrust bar 44rearwardly and thus release the presser 2 from the spring pressure, thus allowing said presser 2 to swing loosely from its pivot 41. l

The common pivot 11 of the inseam guide arm 10 and the knife carrier 30 is mounted on the vertical sleeve 54 of the bolt 55 at the rear of the machine, whereby the inseam guide 1, the presser 2 and the trimming knife 3 may all have lateral feeding movement to 90 feed the work for successive trimming operations, and at the same time effect the channeling of the shoe sole by carrying the sole `past the laterally fixed channeling knife 4 during such feeding operation. The lateral feeding movement ofthe parts mentioned is effected by means of face cams, 56 and 57, uplon opposite 'sides respectively of the cam w eel 39, one `of which engages a friction roll -the guide arm 10, and the other of which en' gages a second roll 61 mounted upon a forwardly projecting arm 62 at the base of the sleeve 54, and shown in dotted lines Fig. 2.

To lock the knife carrier and hold it at the end of its feeding movement, I have provided a dog 63 (Figs. 2 and 5) which is ivoted inv the aperture 64 of the knife sli e 29 and which upon forward movement of thck-nife slide engages an u wardly projecting finger 65 (see Fig. 2) at t erside of thc knife carrier `and is swung rearwardly against the action of `a suitable spring 63a, so that when the knife carriertogether with the knife slide, is swung laterally to the left on the feeding stroke, the dog 63 swings forward under the action of its spring into alinement with the finger 65 and t ere locks its slide. When the knife carrier 30 is returned laterally to the rightl to return the presser 2, the dog 63 and finger 65-serve tomaintain the knife slideV locked in ositio'n 'at the end of the feeding stroke. 1l hen the knife slide is again moved rearwardly to withdraw the 'knife from the work, the 'dog 63 is drawn back from behind the finger 65 and at the same time another dog 66 (see Fig.- 5) ivoted upon the opposite side of the knife slide 29 in the recess 67,y and normall spring-held by a spring 66*l in rearward posii at the side of a guiding slot 32 of the knife carrier, and through its spring throws the k'nife over into its normal position against the opposite wall'of said guiding slot. As the knife is withdrawn7 this second dog 66 drags into a second recess 69 in the side of the guiding slot 32, so that when the slide is again moved forward upon another trimming stroke, if the spring action of the dog 66 for any reason has failed to fully return the knife slide to its normal position, the end of thesaid dog 66 acting against the beveled forward wall 69a of the said second recess 69 will positively complete the lateral return of the knife slide.

In the operation of the parts thus far described the 'presser 2 is pressed rearwardly by the operator and the welt of the shoe brought against the inner surface of the inseam guide 1 with the extremity of said guide bearing against the inseam at the bottom of the crease. Upon release of the handle 43 the shoe is securely held by and between the,

guide 1 and presser 2 and the machine is then started, whereuon the trimming knife moves forward t irough the material of the sole. U on completion of the trimming stroke o the trimming knife, the guide 1,

f presser 2 and trimming` knife 3 are together moved laterally, to the left, to effect the feeding of the work, during which stroke the stationary channel knife 4 engaging the bot-v tom or tread surface of the sole cuts a chan-- nel at a predetermined distance from the trimmed edge thereof. Upon the compleytion of the feeding stroke, the trimming knife 3 which is now locked by the dog 63 against side movement is retracted slightly to free it from the chopping block 61; and at the same time the resser 2 is automatically released from its vc amping action upon the ,sole and said presser and inseam guide 1 are returned to their initial positions to the right. During this return movement of these members the work is held against retrograde movement by the locked knife and the channel knife 4. A fter the presser and inseam guide have completed their return movements and have again seized the work the knife is wholly withdrawn from the work and returned as described to its initial retracted position and alined for the next succeeding trimming stroke. it is notessential that the handle be connected to and attached -to the presser as described, as under some conditions it may be desirable to avoid. the handle vibrations incident to this form of'construction', lin which case the skill of the mechanic' will dictate the'proper mounting of the handle on the frame and other incidental changes in details. v

. Inorder to form a Scotch or Baltimore extension edge around the ball of the shoe the -lmife 3 is moved vertically with respect'to the inseam guide 1. The mechanism to effect this consists of a cam L70, see Figs. 14. and 15, on the main shaft A of the machine, upon which rolls a roll 71 carried by, the arm 72 which is pivoted at72l at the rear of the machine and which, at its forward extremity, alsocarries a wedge guide 73, be-

tween which and the knife carrier 30 .is interposed a wedge 74 which to varythe height of the knife carrier 30 is thrust forward and withdrawn from between said carrier and -the guide 73 by an arm 75 (Fig. 3) pivoted at 76 to the frame of themachine, the parts being so arranged that the wedge 74 is shifted by mechanism to be described and the cam projection 7 0a on the cam 70 comes beneath the roll 71, (Fig. 15), just as the trimming, knife is about to enter the work, so that the level of the succeeding cut of said knife will be determined by the forward orrearward position of the said wedge 74. As soon as the knife has entered the work and is held thereby the cam projection 7 Oa'on the cam 7 0 passes from beneath the roll71, permitting the wedge to drop slightly Aand thereby ease its contact with the knife carrier 30, so that said wedge may be readily shifted by the next movement of the arm .7 5.

For the purpose of actuating the wedge 74,

the arm 75 (see Figs. 3 and 6) is .provided with a foot-77, engaged-by a V-shaped rib 78, carried by the upper end of the rocking plate 79, which oscillates upon a horizontal and a spring 7 7b is interposed between'said.

lugs (Fig. 6)' to take up movement of the foot 77, in case, for any reason, the arm 75 is prevented from moving, thus obviating breakage of the machine. 1

Referring to Fig. 3, the pattern 82 is provided with two pattern surfaces, each extending throughout one I half the circum-v ference,-'one pattern .surface to determine the width of extension of the-sole of a rlght shoe, and the'other .the width of extension of a-left shoe. This pattern is rotated always in one; direction, and to this end 1s fast upon a vertical spindle 83 (Figs. 3, 6 and 7) journaled in arms 'extending from a bracket 84 (Fig. 7) secured .to the frame of the machine by .bolts 84, 1. Between the bearings in the bracket 84, this spindle 83 has fast upon it by a pin 85, a sleeve 36,.

carrying a 'pair of oppositely-wound spiral springlike clutches 87, which normally loosely surround the sleeve. The. adjacent inner ends of these spring clutches are secured to said sleeve 86, while the otheror free ends are respectively fastened to the clutch actuators or arms 88, journaledon the opposite ends of the sleeve/86. When either binty vvheln rocked clutch actuator is rocked in the direction of said clutch enlargcs and kslips easily on said sleeve Without rotating it. 'I he clutch actuators 88, are respectively provided with adjustable faces furnished by contact screws 89, each adapted to be engaged. by one of two rocking transmitters (Figs. 6, 7, 8 and 9) mounted like the' leaves of a hinge upon the horizontal stud 91 on the bracket 8l. The transinittersQO are respectively actuated by cam levers 92, pivoted upon the top and bottom ends of a pin 93 of the bracket 84, said cam levers, at their free ends (Figs. G and 7 being provided with friction rolls 94, which follow the cam path 95 of the cani 90 fast on the main shaft A of the machine, said friction rolls being located upon opposite` sides of said shaft, as shown.

To vary the throur of they transmitters 90 by the levers 92, said levers have adjustably mounted thereon the Contact blocks 97 having knife edge bearings 98 which engage said transmitters 90 on the opposite sides of the latter from the contact screws S9 of the clutchv actuators 8S. Obviously, as the knife edge bearings 9S- of the cam levers and the con tact surfaces of the screWs'SQ, or either' of them, are Iadjust-,ed toward or from their respective pivots, to vary their effective .radial lengths, so will theV rockin@ rnovements' transmitted to the clutches 87ilikewise vary,

thereby varying the rotative movement oi the p'attern 82.

For the purpose of adjusting the' knife ed e bearings 98 along the cani levers 92, in or er to vary the effective throw of the rocking members 90, said bearings are provided respectively with studs' 9S (Fig. 6) `upon which are mounted the slides 99 which are enga'vedhy the forked ends of the yoke 100 (see igs. 6 and 9). This yoke is moved to varythe knife edge hearing by a rack slide 101 connected thereto hnditself actdated by a segmental gear 1.02 (Fig. 6), adjustment of said yoke through. said segmental `gear being' effec ted by mr ans of secured to the gear spindle and extended to ward the front ofthe` machine into convenient position to be moved by the operator. A suitable scale v104 is arranged in juxtaposition to the free end of the adjusting: lever 103, said scale being' `graduated and markedl to indicate. the .neer-ssa r adjustments of the leverrequire for givingT to the pattern 82, theI step by step movement needed for varions sizes of shoes; the sucre-.ayerotative stepsof theI ifi-atterri being shorter for the largcrsizo of shoes than for the smaller, in order that said pattern may complete .its full rotationn the shorter time required for the maascalelevcr1`03 (Fig: 3

l l j l l chine to make the circuit of a smaller' shoe as compared with a larger one.

As slices increase in size the rate of oxtension should also he increased in' order to maintain the same proportional eil'ect throughout the entire run of sizes and to'pro vide for increment of extension oi' adjustment of the trimming knife for the succes-.

sive sizes of slices, I haveprovided means for adjusting the knife edge bearings'78 with respect to the foot 77'of the wedge operating lever, thereby to increase the length of successive niovenientspf the wedge 7 4 as the sizes increase.- To this end the .V-shaped` rib 78 (Fig. 6) hereinbefore stated to he adjustably mounted on its rocking plate 79, is carried by a slide 105 (see Figs. 1 andlO) which is mounted ina guiden'ay 106 in said rocking plate` 7 9. Also, upon the slide 105 is mounted an abut-ment 107 (Figs. 1 and 6) which forms with the rib 78, a vertical guide- Way 108 to receive. the circular upper end 109V of a link 110 pivoted at its lower end at 1121, to the rack slide 101 (see Fig. 10) hereinbefore referred to. The link 110 is slotted at 112 to receive a stud 113 (Figs 9 and 10), `rwhich, at its inner end, extends through a corresponding slot 116 in the rockingr plate 79, said stud 113 thus serving a fulcriini about which the upper ond of the link 110 is rocked, by the rack 101, to adjust the contact rib 7S back and forth upon said rocking plate to vary the wedge movement transmitted by the rocking plate, wherein said rib is moved to meet varying sizes ofshoes. To hold the stud 113 in its said adjusted posiH tion7 l have provided it with acircular head 114 adapted to be seated in one or another of the circularly shaped recesses 115, countersunk along the inner face of theslottrd rocking plate 79. The stud 1,1?. may, if desired, be provided Within the slot 116 of the rocking,r plate nith a slidingl block 1 17 to provide a brtter slide hearing'. The outer end of the stud 113 is provided ith a head 11S, between which and a cup 120 loosely mountedon the stud is arrangi'rd a coil spring 121. which tends normally'to h'old the inner head 114 of the stud seated in its recess 1 15, at the opi'msite side of the rocking plate.

The axis ofthe stud 113 when located at the upper end of the slot 112 in the link 110, is coincident with the axis of the circular upper end of said link, hence movement of the lower end of the link by its rack 101, inercly cause its upper end of said link, now above the pins' 132 will strike the sine of the dog 129 axis of the stud 113, to have a lateral or forward and back movement that is imparted to and for correspondingly adjusting the rib 78 and correspondingly varying the incre'- ment of movement of the knife adjusting wedge 74, thus providing for a proportionate variation in the extension of sole whenever the position of the size adjusting lever 103 is changed.

It will be remembered that the pattern S2, has two pattern surfaces, one for a right, and

the other for a left shoe, consequently since the mechanism as a whole operates continuously, it becomes necessary to stop rotation of the pattern at or toward the end of each roundingr operation and to hold it at rest until a new or mating shoe is positioned, when it should be again set in motion to handle such new shoe. To this endthe sleeve 86 to which the pattern is connected is provided (Fig. 3) upon diametrically opposite sides with the projections 122 which are adapted to engage a plate spring 123 carried by the rear of the bracket 84 (Figs. 7 and 9). This spring carries a yoke 124 (Figs. 7, 8 and 9,) the extremities of which overlie ears 88a upon the clutch actuators 88 and press the contact screws 89 of said actuators against the transmitters 90 and hold the latter in turn against the knife edge bearing 9S of the cam levers 92 (see Figs. 6 and 9). however, in the rotation of the pattern either of the projections 122 on the sleeve 86 comev beneath the spring 123, they force said spring outwardly and thereby press the yoke 124 away from the clutch actuators 88, permitting the spring clutches and said actuators to remain away from the rocking transmitters 90 and stopping the pattern but leavingit as a necessary support for maintaining the pattern controlled wedge 74 in fixed position .during the remainder of .the rounding operation of the shoe. lTo again set the pattern in motion at the proper time after a new shoe has been positioned, a starting mechanism is provided, consisting of a vertical lever 125 (see Figs. 1 and 11) mounted upon a rock shaft 126, upon which is also mounted an arm 127 connected by means of a treadle rod 12S to suitable treadle hereinafter de'-` scribed. Projecting from the upper free end of the lever 125 is a rotatable pin 130, to the end of 'which is pivoted a starting dog 129, provided with a stop finger 134 a spring 131 secured to the lever 125 and said pin 130 serving to swing the pin and its dog horizontally into the path of rotation `ofa pair of diametrically arranged. starting pins 132 (Fig. 3) depending from the under side of the pattern.. l

Referring to Fig. 3, the pattern in its rotation approaches the end of a semi rota tion, t. e., near the end of a complete operation upon 'one shoe, one of the depending.

When,

and swing the latter to one side to enable it to pass. After the pin asses vthe dog, the dog spring 131, swings t e dog vbackv to its normal alinement where it is arrested by contact of its stop nger 134 with the pin that deflected it; The dependingv pins 132 are arranged upon the same diameter of the pattern to that upon which thevprojections 122 on the sleeve 86 are located, J that when either of the pins reaches a position relative to the starting dog 129 shown in Fig. 3, one of the sleeve projections 122 will at .the same time have engaged the spring 12.3 andthrown .the clutch actuators out of operationl and will havestopped the pattern. When, now, it is desiredto start the pattern, the lever 125 is rocked forwardly by the treadle connection 128, whereupon the dog 129 engages the depending pin 132 in front of it and pushes the pattern ahead, thereb rotating the sleeve 86 sufficiently to move t e projection 122 upon said sleeve from. beneath the spring 123, thereby permitting the clutch actuators to again be thrown into operative position with respect to the cam levers 92; and the pattern thus set in rotation continuesv until the o posite projection 122 reaches and lifts t e spring 123 and again.V stops the l attern at the end of one-half a revolution. t will be seen therefore that the starting of the pattern is entirely under the control ofthe lo erator, who starts it when he has positione a shoe to be rounded but when said pattern has once been set in motion; it is controlled in-its movement exclusively by the, operation of the machine and cannot be again stopped, except by the sto ping ofthe machine; .until it has traveled t oughout "one-half a revolution or throughout the full extent of one of its pattern faces, when the rounded shoeis ready for replacement by a new shoe.v

The channel knife 4 (see Fig. Das hereto.- fore described is mounted uponthe block 5'. To permit vof change in the-elevationof the channel knife relative to the line of cut ofthe trimming knife 3, said block 5 is slotted horil Zontally at its forward or upper end' at 147`to receive the block pivot mounted on one arm of a T-shaped lever 144, fulcrumed at 135 upon an ear depending from thev trimming knife carrier 30,l so that except when moving from the shank to the ball and vice versa, whenever said knife carrier is raised' or lowered to vary the width-of extension of the sole, said block and its channel knife 4 will be correspondingly raised or low'eredso as to retain the channel at a uniform, predetermined distance in fromvthe sole edge whatever be the extension thereof.- Said block 5, at its inner and lower ends, has pivoted thereto at 138 a link 137, hungat139, alsofrom the trimming knife carrier, thereby tosupport the inner end of said block to move with said carrier. In order that lthe -block 5 may be pressed constantly forward to project its channel knife 4 beyond the presser 2, and in osition to cut a channel in the solo while being fed past said presser, said block 5 is drilled at 140 to receive a spring 141 which is seated'ag'ainst an adjustable stop screw 142,

j said spring at its opposite end being seated a ainst a T e spring 141 being seated in the block 5, and acting against the link 137, that is con` nected 'at its lower end also with said block 5, tends. to throw rearwardly the upper end of said link,lwhich being vertical, secures said end of said block 5. rThe downwardly extending arm of the T-shaped rocking lever 144 is connected by means of a link 148 with the lever 125 at the rear of the machine, which operatesthe pattern dog 129. Vhen said dog carrying lever is' moved forward to set in motion the pattern, it acts also through the link 148 to swing the T-shaped lever l144 about its fulcrum and thereb lift the feif Ward end ofthe block 5 witi its Channel knife 4.- The dog carrying lever and block 5 'are held in these positions, with the channel knife cutting its channel close .to the trimmed edge, usually throughout the contour-of the fore part vand untilthe shank is reached at the opposite side of the shoe, when said lever is released and permitted to return to its normal position, returning also the channel .knife to its normal C; lowermogf, )0-

sition for vcutting along the'shank. 'he movements of the .channel knife with respect to the trimming knife 3 are limited by means Ofthe stop screws 149 projecting downfwardly froma lug 136 at the side of the trimming knife carrier and contacting respectively with the oppositely extending arms of the T-shapedrocking member' 144. i Toallow for a larger amplitude of swing of `the dog carrying lever 125 at the rear of the machine than is required to move the chan# nel knife, the link 148 which connects the channel knife withl said lever, is forked at its rear end at 150 to straddle a stud 1.51 on said lever; the lower prong of the fork being provided,with a depending lug 152, which projects between the oppositely acting free arms of a spring 15S-mounted upon a stud 154 also-upon' the lever 125 and normally pressing against opposite sides of a sto lug 155. v.Any excess of' movement of the lever block 143 pivoted to the link 137;

successive cuts therethrough.

125, beyond the movement permitted of the link 148 and its channel knife, results in moving one of the larms 'of the spring 153 away from .its stop lug 155. When said cver 125 released, said spring arm returns the lever to its normal position centered between the opposed spring arms.

The peculiar form of treadhil mechanism which I prefer to employ for operating the rod 128 and its dog, carrying lever 125, is illustrated in Figs. 18 fand 19, in which the treadle arm is shown at 156,V pivoted at .157, upon a suitable supportj158. This treadle arm is provided at. itsforward end with a treadle plate 159, pivoted thereto at 1110 and provided at its heel end with a stop 161, which contacts with the extreme j forward end of the treadle arm 156 and 'determines the upper position of the tifeadle plate. lThe toe end of the tre'arjll'e arm 156 is forked, and betweenthe forked arms is pivoted, at 162, an auxiliary treadle arm 170,-the outer ond "of which contacts with the toe end of the treadle plate 159, .and the `inner end of which has pivoted to it the treadle rod 128, hereinbefore referred to, and which connects with the dog carrying arm 125 to operate 'the cam pattern and the eli-'annui l'ciiife. At the pivot point 162 of the tieadle arm 156 also is connected la trentlle rod 171, which leads to j and servos to operate a suitable clutch or othere'tarting'or stopping mechanism of the machine but which is not herein shown.

The operation of the machine may be summarized as follows:-The operator irst places his foo-t uponthe treadle plate 159, and., throwing his weight u on the heel end thereof and keeping sai plate resting squarely ,u on its fulcrufl 160 and Stop 161 l-GPIGSSGS t 9 bieadle arm. 15G, carrying with it the kiliarv treadle 170, but without mflnff it relative to said main treadle arm. 15G. l`his de ression of the main treadle arm acts to pu l down upon the rod 171 and thro v'in the clutch to start the machine, whic sets inmotion the trimming knife and the lateral feeding movements of the inseam guide and presser. The operator n ext throws inward the presser lever 423 to withdraw the resser 2, to permit the edge of a sole of a s ioe to be rough rounded to be 1nserted between said presser and the inseam guide with the edge of the latter firmly seated in the bottom of thel crease of the inseam., whereupon the operator releases the' lever 43 and permits the presser to bethrown forward by its spring wit 1 a firm feedirnr contact with'the bottom of thesole, theretby' to. feed the sole lstep by step. The triinmmg knife which was set in operation simultaneouslywith the presser and inseam guide acts immediately to trim the edge o'f the sole by said knife after each cut moving to the left with the inseam guide and 4 presser to feed the sole against the'stationarychaiinel knife to cause the latter to cut the channel as fast as the Work is fed. As stated,- at the end of each feeding movement the trimming knife Withdraws slightly Within the Work and is there lockedl and held at rest to hold the stock.

erably Will be somewhat like. a gougel that is,

'shaped to present either a curved cutting edge at its end or a straight cutting edge With a verticallip at one or both ends vof the cutting edge. A knife thus shaped Will, soto `speak lockY itself in the Work so far as lateral increment odtheworkrelative tc the knife is concerned, aiidrrrill therefore furnish the requisite grip for fec di@ the Work forward against the considerable resistance of the stationary channeling knife, and will' alsminsure the retention of the Work in its new position during the return of the guide and presser to their original positions. It 1s important that the designed feed be insured for each cut of the trimming knife, in order to reserve a proper relationship between the strokes of the vcutting knife and the feedingmovements of the pattern. -The latter is designedv to move throughout a given portion 'of its circumference during a given number of strokes of the cutting knife,` and if the cutting knife did not progress around `the fore part of the shoe asrapidlylas intended; the pattern mechanism Would complete its -Worlrbefore the fore part'had been rounded` and thus a distorted shape of sole Wouldresult. The arran ement and construction of devices hereinbe ore referrcdfto insures accuracy and certainty of feedv at all times.

As hereinbefore stated,4 the inseam guide. ,Serves as the sole guide for the Work through# out the entire contour of the shoe, not only along the sides of the shank thereof, but around the fore part as tv'ell, so that the machine has but a single guideand for a very large proportion of shoes to be operated upon, thisv guide alone would undoubtedly be entirely' suiiicient, for in a majority of cases the line ofthe inseam is sufficiently accurate With referenceto the outline of the last.

The feeler 5, as has been stated, is merely a feeler and not a guide and there-fore does not mar nor soil the upper at any point because, it does not bear With sufficienty pressure thereon. Should the operator carelessly tilt the shoe so as to throw the upper the Work, after Which the trim-- against said feeler with apressure suoli as would constitute said feeler a guide if rigidl supported, said feeler as here shown, Wil" immediately give Way before the shoe and 1 go into the air, making it impossible at any.

time to cause the latter to press upon the upper With such a pressure as is necessary for guiding, as Would mar or soil'sthe upper.

This feeler merely feels for inequalities or uneveiinesses in the inseam, Which is the true guide, and when iti finds any unevenness vor irregularityat causes the inseam guide to be adjusted to the unevenness or inequality, so that the line of cut thus produced from the inseam isaccurate and prop- -erlyV proportioned With reference to the ininseam, the channel along the shank iscut farther in to the sole relative to the inseam guide and trimmed edge tl'an around,` the fore part. When, hcweventhe fore part is reached at eitherV 'side of the shoe, the oprator who has maintained his foot upon the treadle` as first depressed, and Without releasing tlie said treadle, tips his foot forward, thereby depressing the toe endof the treadle plate 159 about its fulcrum 160 thus depressingV the outer end of the auxiliary treadle lever 170, causing the inner end of said lever vto lift the auxiliary treadle rod 128, causing the latte'r t0 throw forward the `dog carrying lever 125 to cause its dog to catch the patterirand move it forward to a giveniredetermined position, at Which its extensionorming peripheral portion becomes effectivefsaid dog carrying lever ai 'the .same time throwing into operation the spring clutches to further rotate said pattern during the subsequent operation of the machine. lnthe further operation of `the machine the rotation of this pattern by varying the position at each stroke of thev s Aknife of the Wedge 74 varies the elevation of the trimming carrier relative to the inseam guide, causing `the trimming knife to fout its path at a distance from t e inseam and along a line which may be ata constant distance therefrom or variable that 'is deteriiiined by the contour of thepattern, so

y that the trimmed edge becomes a substantial reproduction of the pattern contour.

'Of course, any desired outline of sole` may thus he obtained by employing a properly shaped pattern;l Aand this ypattern is so proportioned that for a given number of strokes lso tated, the use of the alternately acting spring clutches enables me to vary the rate of rotation so as to cause the pattern to make its seini-rotation in less tiine'for a small shoe i than for a large shoe, as, of course, is necessary, because the saine number of strokes of the trimming knife required to trim around the fore part of a large shoe, would not be required for a small shoe. This variable feeding movement of the clutches is obtainedby varying the position of the knife edge bearing 9S, Fig. 6, along its cam operated lever Q2. Obviously, thc cam operated movement of the lever being the same, if motion is transmitted from it to the hinge-like transmitters at varying distances from the fulcrum of the levers, transmitted motion will be greater or less, as the case maybe, hence the nievements of the clutch actuators are varied. This adjustment of the knife edge bearings on their said levers is obtained, as has been described, by adjustment of the index lever 103, stated to be adjustable according to the size of shoe to he operated upon and which when moved to vary the rate of ,feed of the atterri (see Fig. 6) varies the position of the lpmife edge bearing 7 8, relative to the foot 77 of the lever 75 that controls the position of the wedge 14, Fig.' 15, to vary the separation of the inseam `guide and trimming knife carrier to obtain a proportional increase or decrease of width in extension as the sizes of the shoes vary. y machine therefore provides what is in Aeffec-t a variable pattern, varying in its effective length according to the distance required to traverse the fore part of a shoe, whereby the proportional increase and decrease in Width of extension produced, may always begin and terminate,

at relatively the sam'e Apoints around the outline of theshoe sole, whatever be the size of the latter. This I believe to be new; the patterns heretofore provided in machines of this sort having been fixed patterns and invariable for different sizes of shoes with the result that an extension would be carried further around a small shoe than on a large shoe with resultant 'variation in proportion displayed by the soles of di'erent sizes of thev saine style of shoe. Also. T believe for .he first time in this art my machine providesmeans for varying the width of extension as the size of the shoe varies; also to preserve the roportional effect, whatever be the size of s ioe. Heretofore, so far as I am acquainted with the art, a given extension has been provided for by a machine and has been preserved throughout all the sizes, with the resultantl e'll'ect that the extension on a large shoe looked diminutive, while the extension for the small shoe was excessive.

It has been stated that in a large propor tion of the shoes operated upon, the feeler will not be required, and when not required, it may be turned upward into its dotted position, Fig. 1, the j ack knife spring 6b serving to hold it in its elevated position, where it kwill he ineffective to vary the adjustment of the inseam guide.

ltis to be understood that my invention is not limited to the particular embodiment here shown, but many changes may be made in the construction and arrangement of parts without departing from the spirit and scope thereof.

1, l'n a machine for operating upon the soles ol boots and shoes,I the combination with an operating tool of a guide acting along a given contourl'of the shoe, and correcting means acting to maintain the general guiding effect of said guide irrespective of localirregularities in the said contour. i

2. In a machine for operating upon the soles of boots and shoes, the combination with an operating tool of an inseam guide and means automatically' to adjust said guide and tool relatively to vary the sole outline for irregularities'in said inseam. y

3. .ln a machine for operating upon the soles of boots and shoes, the combination. with an operating tool of a guide acting along a given contour of a shoe, and contour corsel ioo

reeling means automatically to adjust said guide and tool .relatively to vary the guiding elfect of said contour.

ln a machine for-operating upon the soles of boots and slices,v the combination with an inseam. guide, an operating tool, of

inseam compensating means to compensate for discrepancies between the inseam and a given contour of a last within the shoe.

'5. In a machine for operating upon the soles of boots and shoes, the combination with a guide acting along a given' contour of a shoe, and a tool adjustable with respect to said guide, of means also to adjust said guide to vary the guiding effect of said contour.

6. ln a machine for operating u on the soles of boots and slices,t the com ination with a guide acting along a given contour of a shoe, a tool acting in conjunction therewith of a feeler and means coperating therewith to cause said guide to be adjusted to vary the along a given contour of a shoe, of a feeler and means coperating therewith to cause relative adjustment of said guide and tool to compensate for errors in said contour.

8. In a machine for operating upon the soles ofboots 4and shoes, the combination with an loperating tool, of a guide, a feeler,

and mechanism controlled by the relative position of said guide and feeler to vary relative positions of said guide and tool'.

9. .In a machine for operating upon the soles of boots and shoes, the combination with a trimming knife and a plurality of feeding `aws, all movable laterallyto feed the work, of means to return the feeding jaws to initial. position at the end of the feeding stroke, and means, subsequently to return said trimming knife to its initial position.

10.' In a machine for operating upon the soles of boots and shoes, the combination with a trimming knife and a plurality of feeding jaws', all movable laterally to feed the Work, of means to partially withdraw the knife from the work atthe end of the feeding stroke, means to return the feeding jaws to initial position and subsequently to said re?" turn to fully withdraw the knife and return the same to initial position.

11. In a machine for operating upon the soles of boots and shoes, the combination of feeding jaws and a knife carrier bearing a trimming knife, all movable laterally to feed the work, one of said aws being carried by` said knife carrier, means to return said feeding jaws and knife carrier to initial position, means to hold said knife at the end of the feeding stroke during such return movement,

and means subsequently to return the knife to initial position.

12. In a machine for operating upon the soles of boots and shoes,.the combination of a` trimming knife and a carrier therefor, of a channeling knife carried by said carrier to be initially movable ltherewith in maintaining the channel cut at a fixed distance from the sole edge and means for relatively vmoving the trimming knife and channeling knife to vary the distance of the channel from the sole edge.

13. In a machine for operating upon the soles of boots and shoes, the combination with a trimming knifefor acting upon the edge of a sole and a carrier therefor, of a channeling knife pvoted to said. trimming knife carrier, and stops to limit the pivotal movement of said channeling knife relatively to said trimming knife.

14. In a machine for operating upon the soles of boots and shoes, the combination with a trimming knife movable transversely to its cutting stroke to var;T the shape of the sole, of automatic means under starting control only of the operator to control such transverse movement of the knife.

15. Ina machine for operating upon the soles of boots and shoes, the combination with a trimming knife movable transversely to its cutting stroke to vary the shape of the transverse movement of the knife and means automatically to stop such knife controlling means.

16. In a machine for operating upon thel soles of boots and shoes, the combination with a trimming knife movable transversely to its cutting stroke to vary .the shape of the sole, of automatic means under starting control of the operator to control said transverse movement of the knife, and means automatically to stop the knife controlling means. i

17. In a machine for operating upon the soles of boots and shoes the combination with a guide acting along a given contour of the'shoe, of means for automatically adjusting said guide, said means being yieldable under pressure of the shoe against it in all adjustments of the shoe while on said guide.-

18. In 'a machine for operating upon the soles of boots and shoes the combination of a movable guide for acting along a shoe contour, and means for automatically adjusting said guide, said means being yieldable under pressure of the shoe against it, thereby ren dering it incapable of alone serving as a work uide. g 19.V In Aa machine for operating u on the sole, of automatic means to control such soles of boots and shoes the com ination,

with a guide acting along a given contour of the shoe, of a feeler and connections between it and the guide for determining the adjustment of the guide, said feeler being movable with respect thereto and having a range of movement greater than the eXtreme adj ust ing movement of said guide.

20. In a machine for operating upon the soles of boots and shoes the combination with `a guide acting along a given contour of a shoe, of a feeler and means under control of the feeler for adjusting said guide and provisions for throwing the feeler out of operation upon movement thereof beyond that required to adjust the guide.

21. In a machine for trimming the soles lof boots and shoes the combination with feeding means comprising clamping jaws and a trimming knife of a carrier for said knife provided with a lock to hold said knife at .the end of a feeding stroke to prevent retrograde movement of the work during return of the clamping jaws to initial position.

22. In a machine for trimming the soles of boots and shoes the combination with a trimming knife and a guide coperating therewith of a wedge and. operating means therefor for changing the relative position of the knife and guide.

28. In a machine for trimming the soles of boots and shoes the combination with a, trimming knife and a guide cooperating therewith of a wedge and operating means Y 24. ffIn a machine for trimming the soles of l and Vb oots and shoes the combination with a reclprocating trimming knife and means to op.-` erate it and a guide coo eratmg therewith, of

a feeler and means un er the/control thereof for effecting relative adjustment of said knife guide. i

25. In a machine for operating upon'the soles of boots and shoes thecombination with a reciprocating trimming knife and means to o erate it and a guide` cooperating therewith, of a feeler and means adapted to be set in motion by said feeler to effect relative adjustment of said knife and guide.

26. In a machine for trimming the soles of boots and shoes the combination with a trimming knife, and a guide cooperating therewith, of means to vary the relation hetween said knife and guide during the operation of the machine to. produce an extension edge on the sole, said means including a pattern having a plurality of successive patternl contours thereon, and means for moving said patterns in one direction to successively bring such pattern contours into action.

27. In a machine for trimming the soles ofboots and shoes, the combination with a trimming knife and a guide co erating therewith, of means to vary the re ation of said knife and guide during the operation of the machine to produce an extension edge of the sole, said means comprising a pattern having successively arranged right and left pattern contours thereon, and means for moving said pattern to bring said right and left pattern contours successively into action.

28. In a machine for trimming the soles of boots and shoes the combination with a trimming .knife and a guide cooperating therewith, of means tolvary the relative positionof said knife and guide to produce an extension edge on the sole, said means comprising a pattern having successive pattern contours for right and left shoes, and devices for moving said pattern in one direction.

29. In a machine for trimming the sole's of boots and shoes the combination with a trimming knife and a guide cooperating therewith, of means to vary the relative position o f said knife and Onide to produce an extension edge on the sonicY said meanscomfprising a pattern, and means for imparting 'a v variable continuous movement thereto.

30. In a machine for trimming the soles of boots' and shoes the combination with a trimming knife and a guide cooperating therewith, of means to vary the relative position of said knife and guide to produce an extension edge on the sole, said means comprisinfr a pattern having successively arranged pattern contours and means to vary its effective operation according to ,the sizes of shoes operated upon.

- positions of said knife and 31. In a machine for trimming the Asoles of .boots and shoes, the combination with a trlmining knife and guide cooperating therewith, a pattern for determining the relative movements of the knife and guide, means for continuously moving the pattern tln'oughout the trimming action of a shoe sole and means for grading the relative movements obtained from said patternl to produce variations in width of extensions corresponding to variations in the sizes of shoes.

32. In a machine for trimmmgthe soles of boots and' shoes tho combination with a trimming knife and a guide cooperating therewith, of pattern means to vary the relative position of said knife and guide for produeilg a desired edge extension, and means` for a Justing the pattern means for varying the widths of extensions for different sizes of shoes from one and the same pattern.

` 33. In a machine for trimming the soles of boots and shoes, the combination with a trimming knife and a guide cooperating therewith, of means to vary the relative position of the knife and guide to produce an extension `edge on the sole, sai'dvmea'ns comprising pattern means having successively arranged pattern contours for right and lefts,

one o which is edective througthout the entire rounding operation-of a shoe, and means .for grading the extensionfor different shoes.

34. In a machine for trimming the soles of boots and shoes the combination with a trimminfr knife and a guide cooperating therewith, of means for ad]usting the relative ide t'o produce an extension edge on theso e and a pattern continuously moving during the trimming action and coperatin with said adjusting means to determineie extent of adjustment in the production of different widths of extension.v

85. In amachine for operating upon the soles of boots and shoes, a trimming knife,

and a channeling knife, a guide cooperating therewith, a pattern'for determining the relative position of said knives with respect to the guide, means for moving the pattern and for stopping the same, and means for starting the pattern and simultaneously moving the channeling knife with respect to the trimming knife at the commencement of the operation of the attern.

36. n a machine for trimming the soles of boots and shoes the coinbination'with a trimming knife and a guide cooperating therewith, of means including a wedge for adjusting the relative positions of said knife and guide to produce an extension edge on the sole, and a pattern i'nechanism cooperating with said wedge and controlling the adjustment thereof.

37. In a machine for trimming the soles of boots and shoes the combination with a trimming knife and a guide cooperating therewith, of means lfor shifting the position of the trimming knife with respect to said guide to. produce a "Baltimore 'or Scotch edge,

said means making intermittent contact with the knife carrier.

38. In a machine for trimming the soles of boots and shoes the combination with a trimming knife and al guide cooperating therewith,

of means to adjust the relative positions of' correcting means automatically. to adjust' said guide for irregularities in said contour.

40. In a machine for trimming the soles of boots and shoes, the combination with means for feeding the work, of means forproducing an extension edge on the sole, and means for controlling said extension producing means,

said controlling means having a variable movement to cause said extension producing means to operate proportionately upon solesA of dierent sizes'.

41. In a machine for trimming the soles-of boots and' shoes the combination with means for feedingthe work uniformly, of wedge operated means for producing an extension edge on the sole, and means for controlling said extension means and having a variable movement to cause said extension. means to operate proportionately upon soles of different sizes.A

42. In a machine for trimming the soles of boots and shoes the combination with means for feeding the work uniformly, ofvmeans for producing an extension edge/on the sole, and a pattern for controlling said extension means a: and hai/'ing a' variable movement to cause -said extension means to operate proportionately upon shoes of different sizes to vary the width of extension in accordance with variations in sizes.

43. In a machine for operating upon the soles of boots and shoes the combination with means including a single pattern for varying the width of the sole proportionately tothe size of shoe being acted upon, of a channel knife and means for moving said knife independently of said means.

4:4. In a machine` for operating upon the soles of boots and shoes the combination with means for varying the width of the sole, as desired, and means for proportionately varying the width thereof for di''leig'ent sizes of shoes of a channeling knife and means for shifting the path of operation thereof independently of said means.

45. In a machine for operating .upon the soles of boots and shoes the combination with an' inseam guide of a feeler arranged independently of and to control said guider, and operative connections between said ieeler and guide.

46. In a a trimming knife and a guide cooperating machine for operating upon the soles ofboots and shoes the combination withv therewith, of means automatically to vary 1 the relative position` of said knife and guide, and means controlled by the operator and acting throu h said automatic means to vary the width 0I the sole for diiferentsizes of 47. In a machine for acting uponthe soles of boots and shoes the combination of a guide and a tool having an adjustable relation to eachother in determiningthe width of the extension edge, a position determining pattern and operating connections for determining such rela-tion, and means in addition to the pattern for also adjusting the relation between the knife and guide during the operj ation of the machine.

48. In a machine for acting upon the soles of boots and shoes, the combination of a guide and a tool having a variable relation to each other in determining thewidth of the extension edge, a positioning pattern for de- .termining such relation, means for varying the action` of the pattern to proportionately vary the extension edge for shoes of different sizes, and a feeler controlled means for varying the relation of the tool` and, guide on occurrence of local irregularities of the guiding contour.

49. In a machine for acting upon the soles of boots and shoes, the combination with al along a shoe contour, o a pattern to control the relation between the knife and guide in the production of an extension edge, and feeler controlled means to vary the guiding effect ot said contour.

51. In a machine for acting upon the soles of boots and shoes, the combination with a trimming knife and an inseam guide, of a pattern to control the relation between the saidknife and guide in the production of an extension edge, a feeler acting along a shoe contour, and means cooperating therewith to canse relative adjustment of said guide and trimming knife on the occurrence of-irregularities of the inseam contour.

52. In a machine for operatino` upon the soles ot boots and shoes, the combination of 

